若a在(1,6)上服从均匀分布，则x2+ax+1=0有实根的概率为 （填最简分数）

A. She received a bonus unexpectedly.
B. She got a well-paying job in a bank.
C. She received her first monthly salary.
D. She got a pay raise for her performance.

A. Two decades ago.
B. Several years ago.
C. Just last month.
D. Right after graduation.

A. He sent a small check to his parents.
B. He treated his parents to a nice meal.
C. He took a few of his friends to a gym.
D. He immediately deposited it in a bank.

A. Join her colleagues for gym exercise.
B. Visit her former university campus.
C. Buy some professional clothes.
D. Budget her salary carefully.